There are
971 mi
from Cheyenne, WY to Dyer, IN
That's the driving distance. It would take 17 hours 8 mins to go from Cheyenne, Wyoming to Dyer, Indiana.
The flight distance (direct flight from Cheyenne, WY to Dyer, IN) is 896.51 mi.
971 mi = 1,562.20 kms